dam² Ontology Mapping Tool

dam2 is a Java implementation of an iterative ontology
mapping algorithm. The novelty of the dam2-algorithm is
that it can make use of training data in the form of given mappings to
a third ontology. Note that, similar to many other mapping algorithms,
damSquare is limited to one-to-one mappings.
dam2 can parse OWL ontologies using Jena. The mapping is output in
OAEI format.
Note that dam2 is not an interactive
tool.

Required External Downloads

Usage

Usage of dam2 is simple. Once the required Jena and
SecondString libraries are installed and added to the classpath,
simply run the damSquare jar file.

To get started, simply select two ontologies in OWL format and a
place where the mapping is to be stored, then click on "Perform
Mapping". Easy, isn't it? The output is stored in the format of the
Ontology Alignment Evaluation
Initiative.

Note that one of the ontologies is called the reference
ontology. If you want to use training data, you have to provide both a
background ontology and a mapping from the background to the
reference ontology, again in OAEI format, as the background
mapping.

On a second tab, the dam2 user interface offers
some more options to fine-tune the alignment process. The values are
pre-set to sensible defaults. The meaning of the different parameters
is discussed in the paper
in detail.